<!DOCTYPE html>
<html>

<head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
<title>Cascading Left Nav</title>
<style>
  #leftNav {
    border-right: 1px grey dashed;
    width: 9.5em;
    margin-left: -2em;
	}
	
  #leftNav ul {
    list-style: none;
	}
	
  #leftNav ul ul li {
    margin-left: -1.5em;
	}	
</style>
</head>

<body>
  <nav id="leftNav"><!-- leftNav.js injected nav system. --></nav>
  <section>
    <!-- Page content here. -->
  </section>
  <script src="leftNav.js"></script>
</body>
  
</html>